The floorboard scrawling of a tragic madman is on public display outside a Paris hospital, much to the dismay of its opponents.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

Catholics make up 84% of Ireland's population but this Dublin museum remembers the small but important Jewish community.

The enchanting archway is the only surviving portal into Dublin's lost medieval wall.

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

A museum that cashes in on its infamous little people while teaching you a thing or two about the Irish fey.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

An unusual round church in London with a Templar past.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

The oldest stone house in Paris was built by its most famous alchemist.

The colorful stairs are made with marble from the world's major quarries.

This 16th-century house tells the city's history through old artifacts and quirky tales.

This hidden museum examines the complex history of the country's law enforcement.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

Try not to get slimed in Tribeca.

Tucked in the back of this amazing antique store is an important piece of medical history.